Precipitation method white carbon black is an important inorganic non-metallic material widely used in multiple industries. According to their different characteristics
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Precipitated white carbon black can be divided into the following categories:
1、 Classified by particle size
Nano scale precipitation method for white carbon black
Characteristics: The particle size is generally between 1-100 nanometers, with extremely high specific surface area and surface energy. Its surface has abundant active sites that can strongly interact with various substances.

Application field: In the rubber industry, nanoscale precipitated white carbon black can be used as a high-performance reinforcing agent for manufacturing high-performance tires, high-performance rubber hoses, etc. For example, adding nano-sized precipitated white carbon black to tires significantly improves their wear resistance and wet skid resistance, effectively shortens braking distance, and enhances driving safety. In the field of electronics, nanoscale precipitated white carbon black can be used to prepare electronic packaging materials, and its good dispersibility and high specific surface area can improve the thermal conductivity and insulation properties of the material.

Micro scale precipitation method for white carbon black
Characteristics: The particle size is between 100-1000 nanometers, and its dispersibility is slightly poor compared to the nanometer level, but it has good filling performance.
Field application: In the plastic industry, micron sized precipitated white carbon black can be used to fill plastics, improve their mechanical properties and heat resistance. For example, adding micrometer sized precipitated white carbon black to polypropylene can improve its tensile strength and bending modulus, while reducing its thermal expansion coefficient. In the coatings industry, micron sized precipitated white carbon black can be used to prepare high solid content coatings and powder coatings, improving the leveling and adhesion of coatings.

2、 Classified by surface treatment method
Untreated precipitated white carbon black
Characteristics: The surface is hydrophilic, with high surface activity and easy aggregation.
Application areas: Mainly used in some fields that do not require high surface performance, such as fillers for ordinary rubber products. In some water-based coatings, untreated precipitated white carbon black can also be used as a thickener, but due to its hydrophilicity, it may lead to poor dispersion stability of the coating.

Surface treatment precipitation method for white carbon black
Characteristics: Through surface treatment, the surface properties of precipitated white carbon black can be changed to make it hydrophobic or have specific chemical reactivity. For example, precipitated white carbon black treated with silane coupling agents has organic functional groups on its surface, which can form good chemical bonds with organic polymer materials.

Application field: In high-performance composite materials, surface treated precipitated white carbon black can be used to enhance the interfacial bonding strength of composite materials. For example, in carbon fiber reinforced composite materials, adding surface treated precipitated white carbon black can improve the impact strength and fracture toughness of the composite material. In electronic packaging materials, surface treated precipitated white carbon black can be used to prepare materials with specific electrical properties, such as conductive or dielectric materials.

The classification of precipitated white carbon black is diverse, and different classifications determine its unique applications in different fields. With the continuous advancement of technology, the performance of precipitated white carbon black will be further optimized, and its application fields will also continue to expand.